Electronic device including discoloration member

Abstract

According to various embodiments of the present disclosure, an electronic device may be provided. The electronic device may include a housing comprising a protrusion, an ear tip configured to be connected to the protrusion, a color-changing member disposed on the inner surface of the ear tip configured to change color based on temperature, a light-emitting module disposed within the housing and configured to emit light toward the color-changing member, a first light sensor disposed within the housing and configured to detect light reflected from the color-changing member, and a processor configured to determine the temperature of a user based on the color detected using the first light sensor.

Description

Technology Field

[0001] The present disclosure relates to an electronic device comprising a color-changing member. Specifically, the present disclosure relates to a wearable electronic device comprising a color-changing member whose color changes based on temperature. Background Technology

[0002] Due to advancements in information and communication technology and semiconductor technology, various functions are being integrated into a single portable electronic device. For example, electronic devices can implement not only communication functions but also entertainment functions such as games, multimedia functions such as music and video playback, communication and security functions for mobile banking, and functions such as schedule management and electronic wallets. These electronic devices are being miniaturized to allow users to carry them conveniently. In particular, electronic devices are becoming smaller and lighter enough to be used without discomfort even when worn on the body. The problem to be solved

[0003] An electronic device that can be worn on the body may include at least one component related to sound effects. For example, a wearable electronic device including a speaker and a microphone may be worn in a part close to the user's ear, such as an in-ear earphone (or earset) or a hearing aid.

[0004] A wearable electronic device can detect the user's body temperature in the user's ear. The temperature detected in the ear may be closer to the user's core body temperature than the temperature of other parts of the user's body (e.g., wrist or forehead). For example, a wearable electronic device can detect the user's temperature using a temperature sensor located in the ear tip. However, if the temperature sensor is placed in the ear tip, the risk of damage to the temperature sensor may increase.

[0005] According to specific embodiments of the present disclosure, an electronic device capable of determining a user's core body temperature can be provided using a discoloration member located at an ear tip and a light sensor configured to detect the color of the discoloration member.

[0006] According to specific embodiments of the present disclosure, an electronic device capable of determining a user's biometric information can be provided.

[0007] However, the problems intended to be solved in this disclosure are not limited to those mentioned above, and may be expanded in various ways without departing from the spirit and scope of this disclosure. means of solving the problem

[0008] According to various embodiments of the present disclosure, an electronic device may include a housing comprising a protrusion, an ear tip configured to be connected to the protrusion, a color-changing member disposed on the inner surface of the ear tip configured to change color based on temperature, a light-emitting module disposed within the housing and configured to emit light toward the color-changing member, a first light sensor disposed within the housing and configured to detect light reflected from the color-changing member, and a processor configured to determine the temperature of a user based on the color detected using the first light sensor.

[0009] According to various embodiments of the present disclosure, an electronic device may include a housing, an ear tip configured to be connected to the housing, a color-changing member disposed on the ear tip configured to change color based on temperature, a light-emitting module disposed within the housing and configured to emit light toward the color-changing member and the user's body, a first light sensor disposed within the housing and configured to detect light reflected from the color-changing member, a second sensor disposed within the housing and configured to detect light reflected from the user's body, and a processor configured to determine the user's temperature based on the color detected using the first light sensor and to determine the user's biometric information based on the signal detected using the second light sensor. Effects of the invention

[0010] According to specific embodiments of the present disclosure, an electronic device can measure a user's body temperature in the ear. By measuring the user's body temperature in the ear, the user's core body temperature, which is less affected by the external environment, can be measured, and the accuracy of the body temperature measurement can be increased.

[0011] According to specific embodiments of the present disclosure, an electronic device can determine a user's body temperature by detecting the color of a color-changing member that changes color based on the user's body temperature. By using a light sensor to detect the color of the color-changing member, the sensor is not placed on the ear tip, thereby increasing the durability of the electronic device.

[0012] According to specific embodiments of the present disclosure, an electronic device can detect a user's biometric information and determine the user's health indicators by detecting light generated from a light-emitting part with a light sensor. Brief explanation of the drawing

[0013] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure. FIG. 2 is a block diagram of an audio module according to various embodiments of the present disclosure. FIG. 3 is a perspective view of an electronic device according to a specific embodiment of the present disclosure. FIG. 4 is a schematic diagram of an electronic device including a first optical sensor according to a specific embodiment of the present disclosure. FIG. 5 is a drawing of an electronic device comprising a first optical sensor and a second optical sensor according to a specific embodiment of the present disclosure. FIG. 6 is a perspective view of an electronic device including a sensor module according to one embodiment of the present disclosure. FIG. 7 is a block diagram illustrating the operation of an electronic device according to one embodiment of the present disclosure. FIG. 8 is a drawing for explaining a color change of a color-changing member based on a second light detected by a first light sensor according to one embodiment of the present disclosure. FIG. 9 is a diagram illustrating a photocirculatory blood flow value that changes based on a fourth light detected by a second light sensor according to one embodiment of the present disclosure. FIG. 10 is a block diagram illustrating the operation of an electronic device according to one embodiment of the present disclosure. FIG. 11 is a flowchart for explaining the operation of an electronic device according to one embodiment of the present disclosure. Specific details for implementing the invention

[0014] FIG. 1 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure.

[0015] Referring to FIG. 1, in a network environment (100), an electronic device (101) may communicate with an electronic device (102) through a first network (198) (e.g., a short-range wireless communication network) or with an electronic device (104) or a server (108) through a second network (199) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (101) may communicate with the electronic device (104) through a server (108). According to one embodiment, the electronic device (101) may include a processor (120), memory (130), input module (150), sound output module (155), display module (160), audio module (170), sensor module (176), interface (177), connection terminal (178), haptic module (179), camera module (180), power management module (188), battery (189), communication module (190), subscriber identification module (196), or antenna module (197). In some embodiments, at least one of these components (e.g., connection terminal (178)) may be omitted from the electronic device (101), or one or more other components may be added. In some embodiments, some of these components (e.g., sensor module (176), camera module (180), or antenna module (197)) may be integrated into a single component (e.g., display module (160)).

[0016] The processor (120) can control at least one other component (e.g., hardware or software component) of the electronic device (101) connected to the processor (120) by executing software (e.g., program (140)), for example, and can perform various data processing or operations. According to one embodiment, as at least part of the data processing or operations, the processor (120) can store commands or data received from other components (e.g., sensor module (176) or communication module (190)) in volatile memory (132), process the commands or data stored in volatile memory (132), and store the resulting data in non-volatile memory (134). According to one embodiment, the processor (120) may include a main processor (121) (e.g., central processing unit or application processor) or an auxiliary processor (123) that can operate independently or together with it (e.g., graphics processing unit, neural processing unit (NPU), image signal processor, sensor hub processor, or communication processor). For example, if the electronic device (101) includes a main processor (121) and an auxiliary processor (123), the auxiliary processor (123) may be configured to use lower power than the main processor (121) or to be specialized for a designated function. The auxiliary processor (123) may be implemented separately from the main processor (121) or as part thereof.

[0017] The auxiliary processor (123) may control at least some of the functions or states associated with at least one component of the electronic device (101) (e.g., display module (160), sensor module (176), or communication module (190)) on behalf of the main processor (121) while the main processor (121) is in an inactive (e.g., sleep) state, or together with the main processor (121) while the main processor (121) is in an active (e.g., application execution) state. According to one embodiment, the auxiliary processor (123) (e.g., image signal processor or communication processor) may be implemented as part of another functionally related component (e.g., camera module (180) or communication module (190)). According to one embodiment, the auxiliary processor (123) (e.g., neural network processing unit) may include a hardware structure specialized for processing an artificial intelligence model. The artificial intelligence model may be generated through machine learning. Such learning may be performed, for example, on the electronic device (101) itself where the artificial intelligence is performed, or through a separate server (e.g., server (108)). The learning algorithm may include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model may include a plurality of artificial neural network layers.An artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to the hardware structure, the artificial intelligence model may include a software structure, either additionally or substantially.

[0018] The memory (130) can store various data used by at least one component of the electronic device (101) (e.g., processor (120) or sensor module (176)). The data may include, for example, input data or output data for software (e.g., program (140)) and related commands. The memory (130) may include volatile memory (132) or non-volatile memory (134).

[0019] The program (140) may be stored as software in memory (130) and may include, for example, an operating system (142), middleware (144), or an application (146).

[0020] The input module (150) can receive commands or data to be used for a component of the electronic device (101) (e.g., processor (120)) from outside the electronic device (101) (e.g., user). The input module (150) may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0021] The sound output module (155) can output a sound signal to the outside of the electronic device (101). The sound output module (155) may include, for example, a speaker or a receiver. The speaker may be used for general purposes, such as multimedia playback or recording playback. The receiver may be used to receive incoming calls. According to one embodiment, the receiver may be implemented separately from the speaker or as part thereof.

[0022] The display module (160) can visually provide information to an external (e.g., user) of the electronic device (101). The display module (160) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling said device. According to one embodiment, the display module (160) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of the force generated by said touch.

[0023] The audio module (170) can convert sound into an electrical signal or, conversely, convert an electrical signal into sound. According to one embodiment, the audio module (170) can acquire sound through the input module (150) or output sound through the sound output module (155) or an external electronic device (e.g., electronic device (102)) (e.g., speaker or headphones) that is directly or wirelessly connected to the electronic device (101).

[0024] The sensor module (176) can detect the operating state of the electronic device (101) (e.g., power or temperature) or the external environmental state (e.g., user state) and generate an electrical signal or data value corresponding to the detected state. According to one embodiment, the sensor module (176) may include, for example, a gesture sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an accelerometer sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biosensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0025] The interface (177) may support one or more specified protocols that can be used for the electronic device (101) to be connected directly or wirelessly to an external electronic device (e.g., electronic device (102)). According to one embodiment, the interface (177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0026] The connection terminal (178) may include a connector through which the electronic device (101) can be physically connected to an external electronic device (e.g., electronic device (102)). According to one embodiment, the connection terminal (178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0027] The haptic module (179) can convert an electrical signal into a mechanical stimulus (e.g., vibration or movement) or an electrical stimulus that can be perceived by the user through tactile or kinesthetic senses. According to one embodiment, the haptic module (179) may include, for example, a motor, a piezoelectric element, or an electric stimulation device.

[0028] The camera module (180) can capture still images and video. According to one embodiment, the camera module (180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0029] The power management module (188) can manage power supplied to the electronic device (101). According to one embodiment, the power management module (188) can be implemented, for example, as at least part of a power management integrated circuit (PMIC).

[0030] The battery (189) can supply power to at least one component of the electronic device (101). According to one embodiment, the battery (189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0031] The communication module (190) can support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between an electronic device (101) and an external electronic device (e.g., electronic device (102), electronic device (104), or server (108)), and the performance of communication through the established communication channel. The communication module (190) may include one or more communication processors that operate independently of the processor (120) (e.g., application processor) and support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (190) may include a wireless communication module (192) (e.g., cellular communication module, short-range wireless communication module, or GNSS (global navigation satellite system) communication module) or a wired communication module (194) (e.g., LAN (local area network) communication module, or power line communication module). The corresponding communication module among these communication modules can communicate with an external electronic device through a first network (198) (e.g., a short-range communication network such as Bluetooth, WiFi (wireless fidelity) direct, or IrDA (infrared data association)) or a second network (199) (e.g., a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (192) can identify or authenticate the electronic device (101) within a communication network such as the first network (198) or the second network (199) using subscriber information (e.g., International Mobile Subscriber Identifier (IMSI)) stored in the subscriber identification module (196).

[0032] The wireless communication module (192) can support 5G networks and next-generation communication technologies following 4G networks, for example, new radio access technology. NR access technology can support high-speed transmission of high-capacity data (enhanced mobile broadband (eMBB)), minimization of terminal power and connection of multiple terminals (massive machine type communications (mMTC)), or high reliability and low latency (ultra-reliable and low-latency communications (URLLC)). The wireless communication module (192) can support a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate, for example. The wireless communication module (192) can support various technologies for securing performance in the high-frequency band, such as beamforming, massive MIMO (multiple-input and multiple-output), full-dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large-scale antenna. The wireless communication module (192) can support various requirements specified in the electronic device (101), external electronic device (e.g., electronic device (104)), or network system (e.g., second network (199)). According to one embodiment, the wireless communication module (192) may support a Peak data rate (e.g., 20 Gbps or more) for eMBB realization, loss coverage (e.g., 164 dB or less) for mMTC realization, or U-plane latency (e.g., downlink (DL) and uplink (UL) each 0.5 ms or less, or round trip 1 ms or less) for URLLC realization.

[0033] An antenna module (197) can transmit a signal or power to or from an external source (e.g., an external electronic device). According to one embodiment, the antenna module may include an antenna comprising a radiator made of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). According to one embodiment, the antenna module (197) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as a first network (198) or a second network (199), may be selected from the plurality of antennas, for example, by a communication module (190). A signal or power may be transmitted or received between the communication module (190) and an external electronic device through the selected at least one antenna. According to some embodiments, in addition to the radiator, other components (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as part of the antenna module (197).

[0034] According to various embodiments, the antenna module (197) may form a mmWave antenna module. According to one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent to a first surface (e.g., bottom surface) of the printed circuit board and capable of supporting a specified high frequency band (e.g., mmWave band), and a plurality of antennas (e.g., array antennas) disposed on or adjacent to a second surface (e.g., top surface or side surface) of the printed circuit board and capable of transmitting or receiving a signal of the specified high frequency band.

[0035] At least some of the above components can be connected to each other via a communication method between peripheral devices (e.g., bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)) and exchange signals (e.g., commands or data) with each other.

[0036] According to one embodiment, commands or data may be transmitted or received between the electronic device (101) and an external electronic device (104) through a server (108) connected to a second network (199). Each of the external electronic devices (102, or 104) may be the same or a different type of device as the electronic device (101). According to one embodiment, all or part of the operations performed on the electronic device (101) may be performed on one or more of the external electronic devices (102, 104, or 108). For example, if the electronic device (101) needs to perform a function or service automatically or in response to a request from a user or another device, the electronic device (101) may request one or more external electronic devices to perform at least part of the function or service instead of performing the function or service itself or additionally. One or more external electronic devices that receive the above request may execute at least part of the requested function or service, or additional function or service related to the request, and transmit the result of the execution to the electronic device (101). The electronic device (101) may provide the result as is or additionally processed as at least part of the response to the request. For this purpose, for example, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used. The electronic device (101) may provide ultra-low latency services using, for example, distributed computing or mobile edge computing. In another embodiment, the external electronic device (104) may include an Internet of Things (IoT) device. The server (108) may be an intelligent server using machine learning and / or neural networks. According to one embodiment, the external electronic device (104) or the server (108) may be included within a second network (199).The electronic device (101) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0037] The electronic device according to the various embodiments disclosed in this document may be of various forms. The electronic device may include, for example, a portable communication device (e.g., a smartphone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a consumer electronics device. The electronic device according to the embodiments of this document is not limited to the devices described above.

[0038] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish said components from other said components and do not limit said components in any other aspect (e.g., importance or order). Where any (e.g., 1st) component is referred to as “coupled” or “connected” to another (e.g., 2nd) component, with or without the terms “functionally” or “communicationly,” it means that said any component may be connected to said other component directly (e.g., via a wire), wirelessly, or through a third component.

[0039] The term “module” as used in the various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit, for example. A module may be a component formed integrally, or a minimum unit of said component or a part thereof that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0040] According to various embodiments, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components. According to various embodiments, one or more of the components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Generally or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, the integrated component may perform one or more functions of each of the multiple components in the same or similar manner as those performed by the corresponding component among the multiple components prior to integration. According to various embodiments, operations performed by the module, program, or other components may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

[0042] FIG. 2 is a block diagram (200) of an audio module (170) according to various embodiments. Referring to FIG. 2, the audio module (170) may include, for example, an audio input interface (210), an audio input mixer (220), an analog to digital converter (ADC) (230), an audio signal processor (240), a digital to analog converter (DAC) (250), an audio output mixer (260), or an audio output interface (270).

[0043] The audio input interface (210) can receive an audio signal corresponding to sound obtained from outside the electronic device (101) through a microphone (e.g., dynamic microphone, condenser microphone, or piezo microphone) configured separately from the electronic device (101) or as part of the input module (150). For example, if the audio signal is obtained from an external electronic device (102) (e.g., headset or microphone), the audio input interface (210) can receive the audio signal by being connected directly to the external electronic device (102) through a connection terminal (178) or wirelessly (e.g., Bluetooth communication) through a wireless communication module (192). According to one embodiment, the audio input interface (210) can receive a control signal (e.g., a volume adjustment signal received via an input button) related to the audio signal obtained from the external electronic device (102). The audio input interface (210) includes a plurality of audio input channels and can receive different audio signals for each corresponding audio input channel among the plurality of audio input channels. According to one embodiment, additionally or substantially, the audio input interface (210) may receive an audio signal from another component of the electronic device (101) (e.g., a processor (120) or a memory (130)).

[0044] The audio input mixer (220) can synthesize a plurality of input audio signals into at least one audio signal. For example, according to one embodiment, the audio input mixer (220) can synthesize a plurality of analog audio signals input through the audio input interface (210) into at least one analog audio signal.

[0045] The ADC (230) can convert an analog audio signal into a digital audio signal. For example, according to one embodiment, the ADC (230) can convert an analog audio signal received through the audio input interface (210), or an analog audio signal synthesized through the audio input mixer (220) additionally or substantially, into a digital audio signal.

[0046] The audio signal processor (240) can perform various processing on a digital audio signal received through the ADC (230) or a digital audio signal received from another component of the electronic device (101). For example, according to one embodiment, the audio signal processor (240) can perform a sampling rate change, apply one or more filters, interpolation processing, amplification or attenuation of all or part of the frequency band, noise processing (e.g., noise or echo attenuation), channel change (e.g., switching between mono and stereo), mixing, or specified signal extraction on one or more digital audio signals. According to one embodiment, one or more functions of the audio signal processor (240) can be implemented in the form of an equalizer.

[0047] The DAC (250) can convert a digital audio signal into an analog audio signal. For example, according to one embodiment, the DAC (250) can convert a digital audio signal processed by an audio signal processor (240) or a digital audio signal obtained from another component of the electronic device (101) (e.g., a processor (120) or a memory (130)) into an analog audio signal.

[0048] The audio output mixer (260) can synthesize multiple audio signals to be output into at least one audio signal. For example, according to one embodiment, the audio output mixer (260) can synthesize an audio signal converted to analog through a DAC (250) and another analog audio signal (e.g., an analog audio signal received through an audio input interface (210)) into at least one analog audio signal.

[0049] The audio output interface (270) can output an analog audio signal converted through the DAC (250), or an analog audio signal additionally or substantially synthesized by the audio output mixer (260), to the outside of the electronic device (101) through the audio output module (155). The audio output module (155) may include, for example, a speaker or receiver such as a dynamic driver or a balanced armature driver. According to one embodiment, the audio output module (155) may include a plurality of speakers. In this case, the audio output interface (270) may output an audio signal having a plurality of different channels (e.g., stereo, or 5.1 channels) through at least some of the plurality of speakers. According to one embodiment, the audio output interface (270) may output an audio signal by being connected directly to an external electronic device (102) (e.g., an external speaker or headset) through a connection terminal (178) or wirelessly through a wireless communication module (192).

[0050] According to one embodiment, the audio module (170) may generate at least one digital audio signal by synthesizing a plurality of digital audio signals using at least one function of an audio signal processor (240), without separately having an audio input mixer (220) or an audio output mixer (260).

[0051] According to one embodiment, the audio module (170) may include an audio amplifier (not shown) (e.g., a speaker amplifier circuit) capable of amplifying an analog audio signal input through an audio input interface (210) or an audio signal to be output through an audio output interface (270). According to one embodiment, the audio amplifier may be configured as a separate module from the audio module (170).

[0053] FIG. 3 is a perspective view of an electronic device according to various embodiments of the present disclosure.

[0054] Referring to FIG. 3, the electronic device (101) may include a housing (310) for accommodating components of the electronic device (101). For example, acoustic components (e.g., audio module (170) of FIG. 2) and / or electronic components (e.g., processor (120), power management module (188), battery (189), or wireless communication module (192) of FIG. 1) may be placed inside the housing (310). The configuration of the electronic device (101) of FIG. 3 may be substantially identical to, in whole or in part, the configuration of the electronic device (101) of FIG. 1.

[0055] According to various embodiments, the electronic device (101) may include a wearable electronic device. For example, the electronic device (101) may be wearable on a part of the body, for example, the ear or the head. According to one embodiment, the electronic device (101) may include an in-ear earset, an in-ear headset, or a hearing aid.

[0056] According to various embodiments, the electronic device (101) may be electrically connected to an external electronic device (e.g., the electronic device (102) of FIG. 1). According to one embodiment, the electronic device (101) may function as an audio output interface (or e.g., the acoustic output module (155) of FIG. 1) for outputting an acoustic signal received from the external electronic device (102) to the outside. Additionally or substantially, the electronic device (101) disclosed herein may function as an audio input interface (or the input module (150) of FIG. 1) for receiving an audio signal corresponding to a sound obtained from outside the electronic device (101).

[0057] According to one embodiment, the electronic device (101) may communicate with an external electronic device (102) or be controlled by the external electronic device (101). The electronic device (101) may be an interaction-type electronic device that is paired with an external electronic device, such as a smartphone, via a communication method such as Bluetooth, and converts data received from the external electronic device (102) to output sound or receives a user's voice and transmits it to the external electronic device (102).

[0058] According to one embodiment, an electronic device (101) may be wirelessly connected to an external electronic device (102). For example, the electronic device (101) may communicate with the external electronic device (102) through a network (e.g., a short-range wireless communication network or a long-range wireless communication network). The network may include, but is not limited to, a mobile or cellular communication network, a local area network (LAN) (e.g., Bluetooth communication), a wireless local area network (WLAN), a wide area network (WAN), the Internet, or a small area network (SAN). According to one embodiment, the electronic device (101) may be wired to the external electronic device (102) using a cable (not shown).

[0059] According to another embodiment, the electronic device (101) may not communicate with an external electronic device (102). In this case, the electronic device (101) may not be controlled through the external electronic device (102), and may be implemented to receive a signal corresponding to a sound obtained from the outside and output an acoustic signal to the outside according to the operation (or control) of the components included in the electronic device (101) itself. For example, the electronic device (101) may be a stand-alone electronic device that does not communicate with the external electronic device (102) but plays music or video on its own to output sound or receives and processes a user's voice.

[0060] In the various drawings of the present disclosure, as an example of the electronic device (101), a kernel-type in-ear headset intended to be mounted in the external auditory canal extending from the outer ear to the eardrum may be described. However, it should be noted that the present invention is not limited thereto. According to another embodiment, although not illustrated in the drawings, the electronic device (101) may be an open-type headset intended to be mounted in the outer ear.

[0061] According to various embodiments, the housing (310) may include a plurality of parts. For example, the housing (310) may include a first housing (311) and a second housing (312) connected to the first housing (311). According to one embodiment, the first housing (311) and the second housing (312) may form at least a part of the exterior of the electronic device (101) and form an internal space to accommodate parts of the electronic device (101). According to one embodiment, when a user is wearing the electronic device (101), at least a part of the first housing (311) may be in contact with or facing the user's body (e.g., ear), and at least a part of the second housing (312) may be facing away from the user.

[0062] According to various embodiments, the housing (310) may include a microphone hole (313). According to one embodiment, the microphone hole (313) may be interpreted as a through hole formed in the first housing (311) and / or the second housing (312). According to one embodiment, sound from outside the electronic device (101) may pass through the microphone hole (313) and be transmitted to a microphone module (e.g., audio module (170) of FIG. 2) located inside the electronic device (101). According to one embodiment, the microphone hole (313) may include a plurality of microphone holes.

[0063] According to various embodiments, the housing (310) may include a protrusion (314). According to one embodiment, at least a portion of the protrusion (314) may be inserted into the user's body (e.g., ear). For example, an electronic device (101) may be inserted into and mounted on the user's body (e.g., external auditory canal or earlobe) using the protrusion (314). According to one embodiment, the protrusion (314) may be interpreted as a part of the housing (310) extending from the first housing (311). According to one embodiment, the protrusion (314) may be connected to an ear tip (320). For example, the protrusion (314) is for receiving the ear tip (320).

[0064] According to one embodiment, the electronic device (101) can be placed in close contact with the user's ear using the ear tip. According to one embodiment, the protrusion (314) includes at least one recess (not shown), and sound output from a speaker module (e.g., audio module (170) of FIG. 2) placed inside the electronic device (101) can be radiated to the outside of the electronic device (101) using the recess located in the protrusion (314). According to one embodiment, the ear tip (320) can be made of an elastic material. For example, the ear tip (320) may include silicone.

[0066] FIG. 4 is a schematic diagram of an electronic device including a first optical sensor according to a specific embodiment of the present disclosure.

[0067] Referring to FIG. 4, the electronic device (101) may include a housing (310) and an ear tip (320). The configuration of the housing (310) and the ear tip (320) of FIG. 4 may be all or partly the same as the configuration of the housing (310) and the ear tip (320) of FIG. 3.

[0068] According to a specific embodiment, the electronic device (101) may be worn on the body (e.g., ear) of a user (U). For example, at least a portion of the ear tip (320) of the electronic device (101) may be inserted into the ear channel (U1) of the user (U). At least a portion of the ear tip (320) may be in contact with the ear channel (U1), and at least a portion of the sound generated by the electronic device (101) may be transmitted to the user's tympanic membrane (U2).

[0069] According to a specific embodiment, the electronic device (101) may include a color-changing member (330) configured to change color based on temperature. For example, the color of the color-changing member (330) may change based on the temperature of the user (U). For example, the color-changing member (330) may change to blue as it approaches a high temperature (e.g., 42 degrees) and to red as it approaches a low temperature (e.g., 34 degrees).

[0070] According to a specific embodiment, the color-changing member (330) may include thermochromic liquid crystals (TLC). For example, the color-changing member (330) may include cholesteryl oleyl carbonate, cholesteryl nonanoate, and cholesteryl benzoate. According to one embodiment, the color-changing member (330) may include cholesteryl oleyl carbonate, cholesteryl nonanoate, and cholesteryl benzoate in a ratio of 3:6:1, respectively. According to one embodiment, the color of the color-changing member (330) may change within a specified temperature range (e.g., about 37 to 40 degrees).

[0071] According to one embodiment, by placing a color-changing member (330) adjacent to the ear of a user (U), the color-changing member (330) can change color based on the user's core temperature. By determining the user's core temperature, the influence of the external environment is reduced, and the accuracy of determining the user's body information (e.g., body temperature) can be increased.

[0072] According to a specific embodiment, the discoloration member (330) may be placed on the inner surface (320a) of the ear tip (320). According to one embodiment, the discoloration member (330) may be coated on the inner surface (320a) of the ear tip (320).

[0073] According to one embodiment, at least a portion of the color-changing member (330) may be visually exposed to the outside of the electronic device (101). For example, the color-changing member (330) may be visible to the outside of the electronic device (101) by passing through the ear tip (320). According to one embodiment, the color-changing member (330) may receive at least a portion of the light generated from the light-emitting module (340).

[0074] According to a specific embodiment, the electronic device (101) may include a light-emitting module (340). According to one embodiment, the light-emitting module (340) may emit light of at least two distinguishable wavelengths. For example, the light-emitting module (340) may include a light-emitting diode (341). The light-emitting diode (341) may emit at least two distinguishable wavelengths. For example, the light-emitting diode (341) may include a red light-emitting diode, a green light-emitting diode, and / or a blue light-emitting diode. According to one embodiment, the light-emitting module (340) may be placed within a housing (310).

[0075] According to one embodiment, at least a portion of the light generated in the light-emitting module (340) (e.g., the first light (L1)) can be transferred to the color-changing member (330).

[0076] According to one embodiment, the light-emitting module (340) may include a first light path (342) for guiding at least a portion of the light generated from the light-emitting diode (341) to the color-changing member (330). One end of the first light path (342) may be connected to the light-emitting diode (341), and the other end may be positioned toward the color-changing member (330). According to one embodiment, the first light path (342) may include an optical cable and / or a waveguide.

[0077] According to a specific embodiment, the electronic device (101) may include a first light sensor (350). According to one embodiment, the first light sensor (350) may detect at least a portion of light (e.g., second light (L2)) generated in a light-emitting module (340) and reflected from a color-changing member (330). According to one embodiment, the first light sensor (350) may be placed within a housing (310).

[0078] According to one embodiment, the first light sensor (350) can detect the color of light reflected from the color-changing member (330).

[0079] According to one embodiment, a processor (e.g., processor (120) of FIG. 1) can determine the temperature of a user (U) based on the color detected by the first light sensor (350). For example, the processor (120) can detect the wavelength of light reflected from the color-changing member (330) (e.g., second light (L2)) and determine the temperature of the user (U) based on the wavelength of the detected light.

[0080] According to one embodiment, the light-emitting module (340) may include a second optical path (343) for guiding at least a portion of the light reflected from the color-changing member (330) to a first optical sensor (350). One end of the second optical path (342) may be positioned toward the color-changing member (330), and the other end of the second optical path (342) may be connected to the first optical sensor (350). According to one embodiment, the second optical path (343) may include an optical cable and / or a waveguide.

[0082] FIG. 5 is a drawing of an electronic device including a first optical sensor and a second optical sensor according to a specific embodiment of the present disclosure. FIG. 6 is a perspective view of an electronic device including a sensor module according to one embodiment of the present disclosure. FIG. 7 is a block diagram for explaining the operation of an electronic device according to one embodiment of the present disclosure.

[0083] Referring to FIGS. 5, FIGS. 6 and / or FIGS. 7, the electronic device (101) may include a processor (120), an ADC (230), a DAC (250), a housing (310), an ear tip (320), a color-changing member (330), a light-emitting module (340), a first light sensor (350), and a second light sensor (360). The configuration of the housing (310), ear tip (320), light-emitting module (340), and first light sensor (350) in FIGS. 5 and / or FIGS. 6 may be all or partly the same as the configuration of the housing (310), ear tip (320), light-emitting module (340), and first light sensor (350) in FIGS. 4. The processor (120) of FIG. 7 is identical in whole or in part to the configuration of the processor (120) of FIG. 1, the ADC (230) and DAC (250) of FIG. 7 are identical in whole or in part to the configuration of the ADC (230) and DAC (250) of FIG. 2, and the configuration of the color-changing member (330) of FIG. 7 may be identical in whole or in part to the configuration of the color-changing member (330) of FIG. 4.

[0084] According to one embodiment, the processor (120) can control the light-emitting module (340) using the DAC (250). For example, the processor (120) can control the driving of the light-emitting unit driving circuit (344) configured to control the driving of the light-emitting diode (341). According to a specific embodiment, the light-emitting module (340) can emit light toward the outside of the electronic device (101) (e.g., the body of the user (U)). According to one embodiment, the first light sensor (350) and the second light sensor (360) may use the same light-emitting diode (341). For example, some of the light generated from the light-emitting diode (341) may be transmitted through the first light path (342) to the color-changing member (330), and other parts of the light generated from the light-emitting diode (341) may be transmitted to the body of the user (U). The color-changing member (330) may be placed on at least a portion of the inner surface (320a) of the ear tip (320). According to one embodiment, the light-emitting diode (341) may include a plurality of light-emitting parts for emitting light of different wavelengths. For example, the light-emitting diode (341) may include a first light-emitting part (341a) for emitting red light, a second light-emitting part (341b) for emitting green light, and / or a third light-emitting part (341c) for emitting blue light.

[0085] According to one embodiment, a first light (L1), which is part of the light generated from a light-emitting diode (341), may be reflected from the color-changing member (330). A second light (L2) reflected from the color-changing member (330) may pass through a second light path (343) and be transmitted to a first light sensor (350).

[0086] According to one embodiment, a third light (L3), which is part of the light generated from a light-emitting diode (341), may be reflected from the body of the user (U). A fourth light (L4) reflected from the body of the user (U) may be transmitted to a second light sensor (360).

[0087] According to one embodiment, the first light sensor (350) may be spaced apart from the second light sensor (360). For example, the first light sensor (350) may be positioned closer to the protrusion (314) and / or ear tip (320) than the second light sensor (360). According to one embodiment, the first light sensor (350) and the second light sensor (360) may be positioned within a first housing (e.g., the first housing (311) of FIG. 3).

[0088] According to one embodiment, the first light sensor (350) can be interpreted as a color sensor for detecting the color of the color-changing member (330). For example, as the first light (L1) is reflected from the color-changing member (330), the second light (L2) may have a different wavelength from the first light (L1). According to one embodiment, the processor (120) can determine the color of the color-changing member (330) based on the signal detected by the first light sensor (350).

[0089] According to one embodiment, the second optical sensor (360) may be referred to as a bio-information sensing sensor. For example, the second optical sensor (360) may be interpreted as a sensor for photoplethysmography (PPG) and / or a sensor for saturation of percutaneous oxygen (SpO2). According to one embodiment, the processor (120) may determine bio-information of the user (U)'s body based on a signal detected by the second optical sensor (360). For example, the processor (120) may determine at least one of the user (U)'s heart rate, the user (U)'s blood oxidation level, or the user (U)'s blood glucose based on the signal obtained from the second optical sensor (360).

[0090] According to one embodiment, information detected by the first light sensor (350) and / or the second light sensor (360) can be transmitted to the ADC (230) through an amplifier (371) and / or a signal adjuster (372). The amplifier (371) can increase the signal detected by the first light sensor (350) and / or the second light sensor (360) by a constant rate. For example, the amplifier (371) may be a transimpedance amplifier. The signal adjuster (372) can adjust the output of the amplifier (371) to correspond to the input of the ADC (230). According to one embodiment, the processor (120) can control the signal adjuster (372).

[0091] According to one embodiment, the processor (120) can determine the color of the color-changing member (330) using a machine learning algorithm. For example, the processor (120) can determine the color of the color-changing member (330) using symbolic regression based on genetic optimization of a syntax tree math formula. According to one embodiment, the processor (120) can convert the light generated from the light-emitting module (340) into a temperature for the color-changing member (330) using a low parameter (e.g., less than 10) retrieved by symbolic regression.

[0092] According to one embodiment, the electronic device (101) may include a temperature sensor (not shown) disposed within a housing (310). The processor (120) may use the temperature sensor to detect the temperature of the ear tip (320) and / or the discoloration member (330) when the electronic device (101) is in a charged state.

[0093] According to one embodiment, the electronic device (101) may include an oscillator for adjusting a signal transmitted to a light-emitting unit driving circuit (344). According to one embodiment, a signal transmitted to a light-emitting unit (341) may be adjusted by an oscillator for forming sequential illumination.

[0094] According to one embodiment, the electronic device (101) may include an ambient light cancellation unit for removing noise from light reflected from a discoloration member (330) and / or a user (U). According to one embodiment, an oscillator may adjust a signal applied to the ambient light cancellation unit (not shown). According to one embodiment, an ADC (230) may store the signal transmitted from the ambient light cancellation unit in a data register.

[0096] FIG. 8 is a drawing for illustrating a color change of a color-changing member based on a second light detected by a first light sensor according to one embodiment of the present disclosure. For example, the horizontal axis of the first graph (g1) of FIG. 8 may represent the temperature (unit: °C) of the color-changing member (300), and the vertical axis may represent the color (hue) of the color-changing member (300). The color of the color-changing member (300) may be referred to as a hue angle (unit: rad) reflecting the ratio of red, green, and blue.

[0097] Referring to FIG. 8, the hue of the discoloration member (300) may be changed based on the temperature of the discoloration member (300). The configuration of the discoloration member (300) of FIG. 8 may be the same as, in whole or in part, the configuration of the discoloration member (330) of FIG. 4.

[0098] According to a specific embodiment, a processor (e.g., processor (120) of FIG. 1) can determine the temperature of a user based on information detected using a first light sensor (350). According to one embodiment, the color of the color-changing member (330) changes based on the temperature, and the processor (120) can determine the temperature of a user based on the color of light reflected from the color-changing member (330) (e.g., second light (L2) of FIG. 5). For example, the first light sensor (e.g., first light sensor (350) of FIG. 4) detects red light, green light, and blue light of the second light (L2), and the processor (120) can determine the temperature of the color-changing member (330) and / or the user based on the ratio of red, green, and blue of the second light (L2).

[0099] According to one embodiment, the processor (120) can determine the temperature of the user's body based on the temperature of the discoloration member (330). For example, the processor (120) can determine the temperature of the user's body (e.g., ear) by correcting the temperature of the discoloration member (330).

[0100] According to one embodiment, a memory (e.g., memory (130) of FIG. 1) stores color information corresponding to a temperature, and the processor (120) can determine the temperature of the color-changing member (330) and / or the user based on the color information.

[0102] FIG. 9 is a diagram illustrating a photocirculatory flow value that changes based on a fourth light detected by a second light sensor according to one embodiment of the present disclosure. For example, the horizontal axis of the second graph (g2) in FIG. 9 can be interpreted as time, and the vertical axis as the amount of light detected by the second light sensor (e.g., the second light sensor (360) in FIG. 5).

[0103] Referring to FIG. 9, a processor (e.g., processor (120) of FIG. 1) can determine the user's body information based on light detected by a second light sensor (360). According to one embodiment, the processor (120) can determine the user's photoplethysmography (PPG) based on information detected using the second light sensor (360). For example, a light-emitting module (e.g., light-emitting module (340) of FIG. 5) can emit a third light (e.g., third light (L3) of FIG. 5) toward the user's body (e.g., ear). The second light sensor (360) can detect a fourth light (L4) that is reflected from the user's body (e.g., the user's blood vessels) as part of the third light (L3). The processor (120) can determine the pulse based on the amount of light attenuation of the fourth light (L4) detected by the second light sensor (360) when the volume of the user's blood vessel changes due to the heartbeat. According to one embodiment, the fourth light (L4) may include light of various wavelengths. For example, the fourth light (L4) may include red light (F1), green light (F2), blue light (F3), and / or light in the infrared wavelength band (F4). According to one embodiment (not shown), the processor (120) can determine the user's saturation of percutaneous oxygen (SpO2) based on information detected using the second light sensor (360). For example, the processor (120) can determine the oxygen saturation of the user's arterial blood.

[0104] FIG. 10 is a flowchart illustrating regression model training of an electronic device according to one embodiment of the present disclosure.

[0105] Referring to FIG. 10, the regression model training (1100) of the electronic device may include the action (1110) of placing the electronic device (101) in a case (not shown), the action (1120) of heating the electronic device (101) within a specified temperature range, the action (1130) of determining the color value of light reflected from the color-changing member (330), and the action (1140) of training the regression model based on the color value. The configuration of the electronic device (101) and the color-changing member (330) of FIG. 10 may be all or part identical to the configuration of the electronic device (101) and the color-changing member (330) of FIG. 7.

[0106] According to one embodiment, calibration may be required to determine the temperature based on the color (e.g., R, G, B values) of the electronic device (101). According to one embodiment, in the operation (1110) of placing the electronic device (101) in a case (not shown), the case may include a heat sensing sensor in contact with the electronic device (101).

[0107] According to one embodiment, while charging the electronic device (101), the coil used for charging generates heat, and based on the generated heat, the electronic device (101) can be heated to about 42°C. For example, the operation (1120) of heating the electronic device (101) may be referred to as the operation of charging the electronic device (101). According to one embodiment, in the charging operation of the electronic device (101), when in a constant voltage state, the temperature of the electronic device (101) is reduced, and the temperature of the discoloration member (330) may also be reduced. According to one embodiment, when a user charges the electronic device (101), a correction for measuring the temperature of the electronic device (101) may be performed.

[0108] According to one embodiment, while the electronic device (101) is being charged within the case, an operation (1130) of storing the color value of the light reflected from the color-changing member (330) may be performed. For example, the memory of the electronic device (101) (e.g., the memory (130) of FIG. 1) may store the temperature of the electronic device (101) and the color value of the light corresponding to the temperature (e.g., red, green, or blue value). According to one embodiment, an operation (1140) of training a regression model based on the color value may be trained based on a mapping function using a non-linear regression model.

[0109] The color value of the electronic device (101) can be converted into a color space (e.g., hue color space). The color space (H) can be defined using the following [Equation 1] and [Equation 2].

[0110]

[0111]

[0112] In Equation 1 above, M = max(R,G,B), m = min(R,G,B), and C = range(R,G,B) = Mm. For example, R, G, and B may represent the amount and / or energy of red light, green light, or blue light, respectively. max(R,G,B) can be interpreted as the amount of light of the color with the highest amount among red light, green light, or blue light. min(R,G,B) can be interpreted as the amount of light of the color with the lowest amount among red light, green light, or blue light.

[0114] FIG. 11 is a flowchart for explaining the operation of an electronic device according to one embodiment of the present disclosure.

[0115] Referring to FIG. 11, the operation (1200) of the electronic device may include the operation (1210) of positioning the electronic device (101) on the user's body, the operation (1220) of obtaining the color value of the light reflected from the color-changing member (330), and the operation (1230) of determining the temperature based on the trained regression model and the color value. The configuration of the electronic device (101) and the color-changing member (330) of FIG. 11 may be all or part identical to the configuration of the electronic device (101) and the color-changing member (330) of FIG. 7.

[0116] According to one embodiment, even when the electronic device (101) is located on the user's body (e.g., ear), substantially the same operation as when the electronic device (101) is located on the case can be performed. For example, the electronic device (101) can obtain a color value of light reflected from the color-changing member (330). The color value may be referred to as the color space (H).

[0117] According to one embodiment, the electronic device (101) can determine the temperature of the user's body and / or the electronic device (101) (e.g., a color-changing member (330)) based on color values. For example, the electronic device (101) (e.g., the processor (120) of FIG. 7) can determine the temperature of the electronic device (101) (e.g., a color-changing member (330)) and / or the user's body (e.g., an ear) based on a regression model trained in the calibration step and color values. For example, values ​​obtained from red light, green light, or blue light are converted into color values, and the color values ​​can be converted into temperatures using a regression model built in the calibration step.

[0119] According to various embodiments of the present disclosure, an electronic device (e.g., electronic device (101) of FIG. 3) may include a housing (e.g., housing (310) of FIG. 3) comprising a protrusion (e.g., protrusion (314) of FIG. 4), an ear tip (e.g., ear tip (320) of FIG. 3) configured to be connected to the protrusion, a color-changing member disposed on the inner surface (e.g., inner surface (320a) of FIG. 4) of the ear tip, wherein the color-changing member (e.g., color-changing member (330) of FIG. 4) configured to change color based on temperature, a light-emitting module (e.g., light-emitting module (340) of FIG. 4) disposed within the housing and configured to emit light toward the color-changing member, a first light sensor (e.g., first light sensor (350) of FIG. 5) disposed within the housing and configured to detect light reflected from the color-changing member, and a processor (e.g., processor (120) of FIG. 1) configured to determine the temperature of a user based on the color detected using the first light sensor. there is.

[0120] According to one embodiment, the color-changing member may include thermochromic liquid crystals (TLC).

[0121] According to one embodiment, the electronic device may further include a second light sensor (e.g., the second light sensor (360) of FIG. 5) configured to detect light reflected from the user's body, as a second light sensor disposed within the housing.

[0122] According to one embodiment, the processor can perform photoplethysmography (PPG) of the user based on a signal detected using the second optical sensor.

[0123] According to one embodiment, the first light sensor may be spaced apart from the second light sensor.

[0124] According to one embodiment, the first light sensor and the second light sensor may be configured to detect light generated from the same light-emitting module.

[0125] According to one embodiment, the light-emitting module may include a light-emitting diode (e.g., the light-emitting diode (341) of FIG. 5) configured to emit light having at least two separable wavelengths.

[0126] According to one embodiment, the light-emitting module may include a first light path (e.g., the first light path (342) of FIG. 5) for transmitting light toward the light-emitting diode and the color-changing member.

[0127] According to one embodiment, the light-emitting module may include a second light path (e.g., the second light path (343) of FIG. 5) that is spaced apart from the first light path and transmits light reflected from the color-changing member to the first light sensor.

[0128] According to one embodiment, the discoloration member may be coated on the inner surface of the ear tip.

[0129] According to one embodiment, the processor may be configured to determine at least one of heart rate, blood oxidation level, or blood glucose based on a signal obtained from the second optical sensor.

[0130] According to one embodiment, the processor may be configured to determine the temperature of the discolored member using symbolic regression.

[0131] According to one embodiment, the ear tip may include silicone.

[0132] According to one embodiment, the first optical sensor may be disposed on the protrusion.

[0133] According to one embodiment, the electronic device further includes a temperature sensor disposed within the housing, and the processor may be configured to determine the temperature of the color-changing member using the temperature sensor when the electronic device is charged, and the processor may be configured to correct the temperature of the color-changing member based on the temperature of the color-changing member detected by the temperature sensor and the color of the color-changing member.

[0134] According to one embodiment, the electronic device may further include a speaker disposed within the housing and a battery disposed within the housing for supplying power to the processor and the speaker.

[0136] It will be obvious to those skilled in the art that the electronic device including the discoloration member of the present disclosure described above is not limited by the aforementioned embodiments and drawings, and that various substitutions, modifications, and changes are possible within the technical scope of the present disclosure. Explanation of the symbols

[0140] 101: Electronic devices 120: Processor 130: Memory 170: Audio Module 176: Sensor Module 310: Housing 311: 1st Housing 312: 2nd Housing 314: Protrusion 320: Next Tip 320a: Inner self 330: Discolored part 340: Light-emitting module 341: Light Emitting Diode 342: First optical path 343: Second optical path 344: Light-emitting unit driving circuit 350: First optical sensor 360: Second optical sensor 371: Amplifier 382: Signal regulator

Claims

Claim 1 An electronic device comprising: a housing including a protrusion; an ear tip configured to be connected to the protrusion and in contact with a user's body through an outer surface; a color-changing member disposed on an inner surface of the ear tip, configured to change color based on temperature; a light-emitting module disposed within the housing and configured to emit light toward the color-changing member; a first light sensor disposed within the housing and configured to detect light reflected from the color-changing member; and a processor configured to determine a user's temperature based on the color detected using the first light sensor. Claim 2 In claim 1, the color-changing member is an electronic device comprising thermochromic liquid crystals (TLC). Claim 3 An electronic device according to claim 1, further comprising a second light sensor disposed within the housing, configured to detect light reflected from the user's body. Claim 4 In claim 3, the processor is an electronic device configured to perform photoplethysmography (PPG) of the user based on a signal detected using the second optical sensor. Claim 5 In claim 3, the processor is an electronic device configured to determine at least one of heart rate, blood oxidation level, or blood glucose based on a signal obtained from the second optical sensor. Claim 6 In claim 3, the first optical sensor is an electronic device adjacent to the protrusion than the second optical sensor. Claim 7 In claim 3, the first light sensor and the second light sensor are an electronic device configured to detect light generated from the same light-emitting module. Claim 8 An electronic device according to claim 1, wherein the light-emitting module comprises a light-emitting diode configured to emit light having at least two separable wavelengths. Claim 9 In claim 8, the light-emitting module is an electronic device comprising a first light path connected to the light-emitting diode and for transmitting light toward the color-changing member. Claim 10 An electronic device according to claim 9, wherein the light-emitting module is spaced apart from the first light path and includes a second light path for transmitting light reflected from the color-changing member to the first light sensor. Claim 11 In claim 1, the discoloration member is an electronic device coated on the inner surface of the ear tip. Claim 12 In claim 1, the processor is an electronic device configured to determine the temperature of the discoloration member using symbolic regression. Claim 13 In claim 1, the ear tip is an electronic device comprising silicone. Claim 14 An electronic device according to claim 1, further comprising a temperature sensor disposed within the housing, wherein the processor determines the temperature of the color-changing member using the temperature sensor when the electronic device is charged, and the processor is configured to correct the temperature of the color-changing member based on the temperature of the color-changing member detected by the temperature sensor and the color of the color-changing member. Claim 15 An electronic device according to claim 1, further comprising: a speaker disposed within the housing; and a battery disposed within the housing for supplying power to the processor and the speaker. Claim 16 An electronic device comprising: a housing; an ear tip configured to be connected to the housing and in contact with a user's body through an outer surface; a color-changing member disposed on an inner surface of the ear tip, configured to change color based on temperature; a light-emitting module disposed within the housing and configured to emit light toward the color-changing member and the user's body; a first light sensor disposed within the housing and configured to detect light reflected from the color-changing member; a second light sensor disposed within the housing and configured to detect light reflected from the user's body; and a processor configured to determine the user's temperature based on the color detected using the first light sensor and to determine the user's biometric information based on the signal detected using the second light sensor. Claim 17 In claim 16, the color-changing member is an electronic device comprising thermochromic liquid crystals (TLC). Claim 18 In claim 16, the processor is an electronic device configured to perform photoplethysmography (PPG) of the user based on a signal detected using the second optical sensor. Claim 19 An electronic device according to claim 16, wherein the light-emitting module comprises a light-emitting diode configured to emit light having at least two separable wavelengths, a first light path connected to the light-emitting diode and for transmitting light toward the color-changing member, and a second light path spaced apart from the first light path and for transmitting light reflected from the color-changing member to the first light sensor. Claim 20 In claim 16, the discoloration member is an electronic device coated on the inner surface of the ear tip.

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